Mechanical reinforcement and creep resistance of coextruded wood flour/polyethylene composites by shell‐layer treatment with nano‐ and micro‐SiO 2 particles

2018 ◽  
Vol 40 (4) ◽  
pp. 1576-1584 ◽  
Author(s):  
Xiaolong Hao ◽  
Haiyang Zhou ◽  
Yanjun Xie ◽  
Zefang Xiao ◽  
Haigang Wang ◽  
...  
Keyword(s):  
Creep Resistance ◽  
Wood Flour ◽  
Shell Layer ◽  
Mechanical Reinforcement ◽  
Polyethylene Composites

scholarly journals Chemical Modifications of Continuous Aramid Fiber for Wood Flour/High-Density-Polyethylene Composites with Improved Interfacial Bonding

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 236
Author(s):  
Wanyu Liu ◽  
Yue Li ◽  
Shunmin Yi ◽  
Limin Wang ◽  
Haigang Wang ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Wood Flour ◽  
Tensile Modulus ◽  
High Density ◽  
Aramid Fiber ◽  
Chemical Modifications ◽  
Plastic Composites ◽  
Vinyl Triethoxysilane ◽  
Extrusion Method ◽  
Polyethylene Composites

To expand the use of wood plastic composites in the structural and engineering constructions applications, continuous aramid fiber (CAF) with nondestructive modification was incorporated as reinforcement material into wood-flour and high-density-polyethylene composites (WPC) by extrusion method with a special die. CAF was treated with dopamine (DPA), vinyl triethoxysilane (VTES), and DPA/VTES, respectively. The effects of these modifications on compatibility between CAF and WPCs and the properties of the resulting composites were explored. The results showed that compared with the original CAF, the adhesion strength of DPA and VTES combined modified CAF and WPCs increased by 143%. Meanwhile, compared with pure WPCs, CAF after modification increased the tensile strength, tensile modulus, and impact strength of the resulting composites by 198, 92, and 283%, respectively.

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